Equipment catalog
Gravidynamic separators of GDS
GDS gravidynamic separators are designed to separate two liquids having different densities and being in an emulsion state. As a rule, they are used to separate mixtures of hydrocarbons or vegetable oils with water.
Main application areas:
Main application areas:
- wastewater treatment from oils, petroleum products;
- cleaning and regeneration of detergents and process fluids at machine-building and repair enterprises;
- collection and dewatering of petroleum products, including during tank cleaning and spill response.
The gravidynamic separator can be used as an independent equipment, or in combination with other devices as a unit for preliminary separation of the bulk of oils and petroleum products.
With a high content of mechanical impurities, second-generation HS are offered, collecting and accumulating mechanical impurities using a prismatic bottom, followed by their removal from the separator and built-in bottom flushing nozzles.
With a high content of mechanical impurities, second-generation HS are offered, collecting and accumulating mechanical impurities using a prismatic bottom, followed by their removal from the separator and built-in bottom flushing nozzles.
The design of the gravidynamic separator may provide for the presence of heat exchangers that maintain the temperature of the separated mixture in the specified ranges.
GDS supplies with a capacity of 1, 2, 4, 5, 10 and 20 cubic meters/hour are standard. Under the order, it is possible to manufacture a GDS separator of any capacity.
The operating pressure at the entrance to the installation is atmospheric. Kits with a pressure above atmospheric pressure are made by special order.
GDS supplies with a capacity of 1, 2, 4, 5, 10 and 20 cubic meters/hour are standard. Under the order, it is possible to manufacture a GDS separator of any capacity.
The operating pressure at the entrance to the installation is atmospheric. Kits with a pressure above atmospheric pressure are made by special order.
Standard components of the GDS gravidynamic separator
Technical characteristics of the GDS gravidynamic separator
Examples of execution of GDS installations
GDS-2
GDS-2 II generation
GDS 20 with insulation and heat exchanger
GDS-container with automation, pumps, insulation
GDS 4 with automation and insulation
GDS 4 of the II generation with a selection pump mech.impurities
Upgraded GDS-1 (model 11.09) with a cleaning hatch and samplers
GDS-2 of the second generation before shipment
GDS 1
GDS 4
GDS-4m
An upgraded design with a pump pumping out separated water and a set of automation that ensures autonomous operation of the pumping pump.
GDS 1 with a new hatch
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The principle of operation of the GDS gravidynamic separator
The action of the gravidynamic separator is based on the gravidynamic principle. It consists in the fact that the separation of two liquids occurs due to a specially organized movement, in which accelerated coalescence (fusion and enlargement) of small droplets of oils and petroleum products is achieved, and then their separation from the aqueous medium, including under the influence of natural gravity.
The main task of organizing the movement at the beginning of the initial unstable emulsion, and then of two separate liquids, is to ensure the most complete and timely coalescence of small droplets of oils and petroleum products, the enlargement of water particles contained in petroleum products, the destruction of water globules and the separation of water from the total mass of petroleum products.
The main task of organizing the movement at the beginning of the initial unstable emulsion, and then of two separate liquids, is to ensure the most complete and timely coalescence of small droplets of oils and petroleum products, the enlargement of water particles contained in petroleum products, the destruction of water globules and the separation of water from the total mass of petroleum products.
All GDS models are calculated mathematically using modern simulation methods on computers. Above is a small part of the flow calculation program in GDS -40 II generation, reflecting the effect of accelerations on the flow of liquid phases in different compartments of the separator
Structurally, gravidynamic separators are a container with various elements inside that ensure optimal movement and separation of the emulsion into two liquid phases (water and petroleum products) due to the fact that the lighter phase is gradually pushed to the top of the flow. In particular, for this purpose, the separator tank is equipped with vertical partitions dividing it into sections.
The first section is the emulsion injection section, separated from the next by two partitions, one of which is located at the upper edge of the container, and the other is attached to the bottom, forming a flow channel in the middle zone of the container. In addition, there is a special trough in the first section, which is designed to dampen the flow rate of the emulsion and its distribution over the entire width of the gravidynamic separator.
The second section, the purification section, is separated from the next by a partition, the edges of which are located at some distance from the upper edge and bottom of the separation tank, forming two overflow channels – one in the upper zone of the tank, for the flow enriched with petroleum products, and the other in the bottom zone, for water. The cleaning section is formed by partitions installed in alternating order, which define the organized movement of the emulsion, as a result of which the emulsion is divided into components of the liquid.
The first section is the emulsion injection section, separated from the next by two partitions, one of which is located at the upper edge of the container, and the other is attached to the bottom, forming a flow channel in the middle zone of the container. In addition, there is a special trough in the first section, which is designed to dampen the flow rate of the emulsion and its distribution over the entire width of the gravidynamic separator.
The second section, the purification section, is separated from the next by a partition, the edges of which are located at some distance from the upper edge and bottom of the separation tank, forming two overflow channels – one in the upper zone of the tank, for the flow enriched with petroleum products, and the other in the bottom zone, for water. The cleaning section is formed by partitions installed in alternating order, which define the organized movement of the emulsion, as a result of which the emulsion is divided into components of the liquid.
The last section, the outlet section, consists of two containers separated by partitions, in which separated liquids are stored and fed to the outlet from the separator. In the last section for water discharge there is a regulating device designed to set optimal cleaning and separation conditions depending on the density of petroleum products (taking into account the actual density of water, which may be higher than 1.0 g/cubic meter.see in connection with its mineralization).
No filter elements, attachments or devices, as well as consumable chemical reagents are required to maintain the constant operability of the gravidynamic separator. For the manufacture of gravidynamic separators, materials resistant to the effects of separated liquids are used. The internal surfaces of the gravidynamic separator are covered with oil-benzo-water-resistant enamel.
No filter elements, attachments or devices, as well as consumable chemical reagents are required to maintain the constant operability of the gravidynamic separator. For the manufacture of gravidynamic separators, materials resistant to the effects of separated liquids are used. The internal surfaces of the gravidynamic separator are covered with oil-benzo-water-resistant enamel.
Question
What is the delay time between the entry and exit of petroleum products from the GDS?
Answer
The delay time between the input and output of the oil product - this concept can be applied to the gravitational-dynamic process only at the stage of starting the separator. The fact is that at the first start after installing the separator according to the instructions or after switching to the mode on a new sludge, the processor capacity of the separator is filled with water.
After full filling, the emulsion feeding process begins. Petroleum products will appear as soon as the amount of petroleum products contained in the initial product, taking into account the "saturation" of the separator. In fact, it will be possible to talk about entering the mode after running through the volume of the liquid separator with an amount three times higher than its capacity.
So, for GDS-10, it is correct to take samples after running an emulsion volume of about 30 m3 through it. Further, the expiration of the oil product will proceed as quickly as there are a lot of them contained in the initial emulsion, i.e. without a visible time delay; the balanced volume of the product inside the tank depends on the type of emulsion (direct or reverse) and varies from 15 to 85% by volume.
After full filling, the emulsion feeding process begins. Petroleum products will appear as soon as the amount of petroleum products contained in the initial product, taking into account the "saturation" of the separator. In fact, it will be possible to talk about entering the mode after running through the volume of the liquid separator with an amount three times higher than its capacity.
So, for GDS-10, it is correct to take samples after running an emulsion volume of about 30 m3 through it. Further, the expiration of the oil product will proceed as quickly as there are a lot of them contained in the initial emulsion, i.e. without a visible time delay; the balanced volume of the product inside the tank depends on the type of emulsion (direct or reverse) and varies from 15 to 85% by volume.
Question
Is it possible for the GDS to work under pressure?
Answer
Yes, we can make such a separator on request.
Question
Which pumps are better to supply the emulsion to the GDS?
Answer
In general, emulsions of the "water-hydrocarbons" type require a delicate attitude. We recommend working with such emulsions with volumetric pumps.
For example, diaphragm pumps with pneumatic drive, or screw pumps. The reason is simple - such pumps usually do not produce additional mixing of the initial emulsion.
For example, diaphragm pumps with pneumatic drive, or screw pumps. The reason is simple - such pumps usually do not produce additional mixing of the initial emulsion.
Certificates
Thermal waste disposal
Recycling and disposal of oil and drilling sludge
Decanters and separators
Disposal and recycling of oils contaminated with PCBs
Tank cleaning
Treatment facilities
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